Dual-Band Substrate Integrated Waveguide Filters With Perturbed Circular Cavity - Yang, Xian-Long; Zhu, Xiao-Wei; Wang, Xiang (IEEE microwave and wireless components letters, 2022)
Keywords: Circular cavity; Couplings; Dual band; Filtering theory; Passband; Perturbation methods; Resonant frequency; substrate integrated waveguide (SIW); Substrates; via perturbation